Page 202 - Start Up Mathematics_3

Exercise 8.2 Exercise 9.1
1. (a) m (b) cm (c) cm (d) km 1. (a) 11 12 1 2 (b) 11 12 1 2 (c) 11 12 1
(e) m (f) km (g) cm (h) m 9 10 8 4 3 9 10 8 4 3 9 10 8 2 4 3
2. (a) 7000 m (b) 9000 m (c) 16000 m (d) 5725 m 7 6 5 7 6 5 7 6 5
(e) 18210 m (f) 40150 m (g) 52,000 m (h) 2068 m 12 1 12 1 12 1
3. (a) 3 km (b) 2 km 300 m (c) 5 km 670 m (d) 9 10 11 2 (e) 9 10 11 2 (f) 9 10 11 2 3
3
3
(d) 9 km 210 m (e) 6 km 660 m (f) 4 km 297 m 8 7 6 5 4 8 7 6 5 4 8 7 6 5 4
(g) 8 km 372 m (h) 5 km 111 m 2. (b) 7:05, 5 minutes past 7
Exercise 8.3 (c) 1:40, 40 minutes past 1 or 20 minutes to 2
1. (a) 6000 g (b) 8000 g (c) 15000 g (d) 2350 g (d) 5:55, 55 minutes past 5 or 5 minutes to 6
(e) 9125 g (f) 10075 g (g) 82275 g (h) 3605 g (e) 3:40, 40 minutes past 3 or 20 minutes to 4
2. (a) 8 kg (b) 33 kg (c) 4 kg 100 g (d) 7 kg 900 g (f) 10:05, 5 minutes past 10
(e) 4 kg 887 g (f) 6 kg 901 g (g) 5 kg 159 g Exercise 9.2
(h) 6 kg 1 g 1. (a) 1 h (b) 3 h (c) 2 h
3. (a) (ii) (b) (iii) (c) (v) (d) (i) (e) (iv) 2. (a) 6 o’clock, 9 o’clock, 11 o’clock, 12 o’clock
4. (a) 3 kg 65 g (b) 5 kg 120 g (c) 74 kg 25 g (b) 6:00, 2:00, 8:00 (c) 4:00, 7:30, 10:00
(d) 13 kg 650 g (d) 1:00, 4:30, 7:15, 9:00
Exercise 8.4 3. (a) 48 h (b) 120 h (c) 168 h
1. (a) < (b) > (c) = (d) < 4. (a) 240 min (b) 360 min (c) 1440 min
2. (a) 7000 (b) 4275 mL (c) 18000 mL 5. (a) 1800 s (b) 25200 s
(d) 6 L 285 mL (e) 1 L 450 mL Exercise 9.3
(f) 9050 mL (g) 1 L 80 mL (h) 3 L 29 mL 1. (a) 3 minutes (b) 2 hours (c) 25 minutes
Exercise 8.5 (d) 5 hours (e) 2 days (f) 10 minutes
1. (a) 95 kg 475 g (b) 27 m 82 cm 2. (a) Tuesday (b) Thursday (c) May
(c) 193 km 950 m (d) 534 L 862 mL (d) November (e) Friday
(e) 27 L 200 mL (f) 458 kg 200 g (f) July and August or December and January
(g) 1 August (h) January
2. (a) 150 km 90 m (b) 22 m 35 cm 3. (a) (ii) (b) (v) (c) (vi) (d) (iv) (e) (iii) (f) (i)
(c) 76 kg 335 g (d) 7 kg 830 g 4. Students need to answer this question on their own.
(e) 24 L 175 mL (f) 657 L 236 mL 5. (a), (d), (e)
3. 10 m 95 cm 4. 1 L 375 mL 5. 4 kg 225 g Let’s Evaluate
Let’s Evaluate 1. (a) 7:45 (b) 10:00 in the morning
1. (a) 500 cm (b) 12000 m (c) 7 kg 543 g (d) 6 L 215 mL (c) 7 o’clock (d) half past 7
(e) 16 m 45 cm (f) 20000 mL (g) 8000 g (h) 7150 g 2. 144 h 3. January, June and July 4. Sunday
2. (a) 6 km 509 m (b) 9 km 170 m (c) 10 km 122 m Values and Life Skills
Values and Life Skills 1. 1 hour 2. quarter to 6
1. 525 g 2. 196 km 32 m Scratch Your Brain
Scratch Your Brain Cake was ready at 12:20
1. 28 glasses 2. 3 kg 575 g Assessment Sheet 3
3. 2 km 500 m 4. 3 kg, 15 kg I. Choose the correct answer.
1. (d) 2. (c) 3. (a) 4. (b) 5. (d) 6. (b) 7. (d) 8. (b)
Chapter 9: Time
Let’s Recall II. Solve mentally and answer.
3
5
1. metres 2. 3. 4. 6 L 8 mL
1. (a) 10 11 12 1 2 (b) 10 11 12 1 2 (c) 10 11 12 1 2 12 7
9 3 9 3 9 3 5. 2650 g 6. 2:30 7. 366 8. 3600 seconds
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5
Chapter 10: Money
(d) 10 11 12 1 2 (e) 10 11 12 1 2 (f) 10 11 12 1 2 Let’s Recall
9 3 9 3 9 3 1. (a) 65 p (b) 70 p (c) ` 112 (d) ` 9 and 15 p
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5
(e) ` 6 and 85 p (f) ` 80 and 55 p
2. (b) 5:15, quarter past 5 (c) 3:30, half past 3 (g) ` 15 and 10 p (h) ` 65 and 75 p
(d) 11:45, quarter to 12 (e) 8:30, half past 8 (i) ` 14 and 95 p
(f) 2:45, quarter to 3 2. ` 34 and 80 p 3. ` 64 and 50 p 4. ` 35 and 50 p

194